HEF4020B

14-stage binary counter

The HEF4020B is a 14-stage binary counter with a clock input (CP), an overriding asynchronous master reset input (MR) and twelve fully buffered outputs (Q0, and Q3 to Q13). The counter advances on the HIGH to LOW transition of CP. A HIGH on MR clears all counter stages and forces all outputs LOW, independent of the state of CP. Each counter stage is a static toggle flip-flop. A feature of the device is its high speed (typ. 35 MHz at VDD = 15 V).

It operates over a recommended VDD power supply range of 3 V to 15 V referenced to VSS (usually ground). Unused inputs must be connected to VDD, VSS, or another input.

Features

  • High speed operation
  • Fully static operation
  • 5 V, 10 V, and 15 V parametric ratings
  • Standardized symmetrical output characteristics
  • Specified from -40 ºC to +85 ºC
  • Complies with JEDEC standard JESD 13-B

Parametrics

Type numberProduct statusVCC (V)Output drive capability (mA)Logic switching levelstpd (ns)Power dissipation considerationsTamb (°C)Rth(j-a) (K/W)Ψth(j-top) (K/W)Rth(j-c) (K/W)Package name
HEF4020BTProduction4.5 - 15.5± 2.4CMOS35medium-40~85561.013SO16

Package

Type numberPackageOutline versionReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))
HEF4020BT
SO16
(SOT109-1)
SOT109-1SO-SOJ-REFLOW
SO-SOJ-WAVE
Reel 13" Q1/T1 CECCActiveHEF4020BTHEF4020BT,653
( 9333 727 30653 )
Bulk Pack, CECCActiveHEF4020BTHEF4020BT,652
( 9333 727 30652 )

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFLeadfree conversion dateEFRIFRMTBF (hour)MSLMSL leadfree
HEF4020BTHEF4020BT,653HEF4020BTweek 4, 200475.32.993.34E811
HEF4020BTHEF4020BT,652HEF4020BTweek 4, 200475.32.993.34E811
Quality and reliability disclaimer

Documentation (7)

File nameTitleTypeDate
HEF4020B14-stage binary counterData sheet2018-10-18
AN11051Pin FMEA HEF4000 familyApplication note2019-01-09
SOT109-1_431SO16; Reel sulfur barrier pack, SMD, 13" Q1/T1 standard product orientation Orderable part number ending ,431 or Z Ordering code (12NC) ending 431Packing2016-08-25
SOT109-1_118SO16; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code (12NC) ending 118Packing2013-04-24
SOT109-1plastic, small outline package; 16 leads; 1.27 mm pitch; 9.9 mm x 3.9 mm x 1.35 mm bodyOutline drawing2018-10-18
SO-SOJ-REFLOWFootprint for reflow solderingReflow soldering2009-10-08
SO-SOJ-WAVEFootprint for wave solderingWave soldering2009-10-08

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Ordering, pricing & availability

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